Pulley-box



(No Model.) 4*

J; M. AUBERY.

PULLEY BOX.

No. 305,555. Patented Sept. 23, 1884.

UNITEE STATES arENr rEicEO JAMES MAUBERY, OF CHICAGO, ILLINOIS.

PULLEYFBOX.

SIDEGIFICATION forming part of Letters Patent No, 305,655, datedSeptember 23, 1884.

Application tiled July Il), 1884.

To au whom t may concern,.-

Beit known that I, JAMEs M. AUBEEY, a citizen of the United States;residing at Ghicago, in the county of Cook, State of Illinois, haveinvented a new and useful box for carrying pulleys, designed to isolatethem from ice, Water, snow, and dirt Which may get into the tunnel inwhich the cable runs propelling or drawing t-he grip cars or carriages,and known as the cable car system,77 of which the following is aspecification.

I attain these objects by t-he mechanism illustrated in the accompanyingdrawings.

" Figure l is a vertical section and side view of the entire box,showing the pulley on which the cable runs; Fig. 2, an end andtransverse section; Fig. 3, a top view with broken cover; Fig. 4, a topView of the cover; Fig. 5, an end of the cover.

Similar letters refer to similar parts th roughout the several views.

A is the shell or outer part of the cast-iron or metal box; B, thepulley to be protected, which carries the cable; D, rim bearing on andbolted to the supporting permanent frame in the tunnel in which thecable and pulley are; E, oil-box, (special cover not showin) F,

V cover in two parts, one overlapping the other,

slanting from the pulley to and running out over the box; G, aperturethrough which the pulley projects.

Prior to my invention the pulleys were uncovered and unprotected. Snowmelting on the track, running into the tunnel, and freezing would stopthe revolving of the pulleys; dirt accumulating would clog the action.

The adjustment of the pulley-box herein described, which can be easilydone by bolting (N0 model.)

it to the frame which now supports the pulleys, will protect and`isolate them from any 4o accumulation of dirt and from freezing snowand Water in the tunnel, thereby saving the very great expense ofrunning the cable coutinuall y in order to prevent the freezing of thepulleys and the destruction of pulleys caused 45 by the friction of thecable on them when starting, the pulleys being firmly held by the ice.This friction also causes great wear to the cable and extra strain on`the motive power, besides increasing greatly the lubricant re- 5oquired.

My invention Would-allow the cable to be stopped at any time forrepairs, and during the night when it was not needed, Without any dangerof the pulleys freezing. 5 5

The construction of this pulley-box also affords complete protection tothe oil against sand or dirt, thus making a great saving in the amountof oil used, in the Wear of the journals and axles, and the laborrequired to attend to 6o the oiling.

Vhat I claim as my invention, and desire to secure by Letters Patent, is

l. A pulley-box, A, made of cast-iron or' metal or equivalent material,constructed with 6 5 a rim or bearing, D, to fasten the box to the framewhich supports the pulley, substantiall as and for the purposespecified.

2. In a pulley-box, the combination and construction of the cover F,with aperture G, and 7o the oil-box E, all substantially as set forth.

JAMES M. AUBERY.

VitnesSeS:

WM. M. LAWRENCE, l?. E. HoUsEL.

